No, you're right: John Stewart replaced Dave Guard in the K3 when Guard left to form the Whiskeyhill Singers. Stewart then worked with Shane and Reynolds for a while,wrote "Daydream Believer" for the Monkees, and "Never Goin Back" for the Lovin Spoonful, had a terrific solo career (check out "The Phoenix Concerts" if they're on CD) and did "(People Out There Turning Music Into) Gold" with a bunch of Fleetwood Mac members.